Q.6 Find the ratio of the following:
(a) 81 to 108
(b) 98 to 63
(c) 33 km to 121 km
(d) 30 minutes to 45 minutes

(a) 81 to 108 = \(\frac{81}{108} = \frac{81÷27}{108÷27} = \frac{3}{4} \)
(b) 98 to 63 = \(\frac{98}{63} = \frac{98÷7}{63÷7} = \frac{14}{9} \)
(c) 33 km to 121 km = \(\frac{33 km}{121 km} = \frac{33÷11}{121÷11} = \frac{3}{11} \)